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geerky42 Group Title

If \( \dfrac{x+2}{x(x-4)} = \dfrac{\text{A}}{x} + \dfrac{\text{B}}{x - 4}\), find \( \text{A+B} \)

  • one year ago
  • one year ago

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  1. geerky42 Group Title
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    @Hero @cwrw238

    • one year ago
  2. mahmit2012 Group Title
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    |dw:1355449302302:dw|

    • one year ago
  3. geerky42 Group Title
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    I don't get it. Please clarify your solution. Thanks.

    • one year ago
  4. mahmit2012 Group Title
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    It means I chose one coefficient and multiplied to the denuminator of that and then I put the root on both sides.

    • one year ago
  5. mahmit2012 Group Title
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    For example for finding out A I chose x in the denuminator then multiplied to x and then put x=0 to both sides and got A. For B is the same way.

    • one year ago
  6. mahmit2012 Group Title
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    Is it clearfied?

    • one year ago
  7. zepdrix Group Title
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    @geerky42 This is an exercise in partial fractions. Do you remember how to do those?

    • one year ago
  8. geerky42 Group Title
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    Sorry, I still don't get it. I mean, why does it work?

    • one year ago
  9. finkimlost Group Title
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    yea was gonna ask if it was a calculas problem

    • one year ago
  10. geerky42 Group Title
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    Partial fractions? Sorry, don't ring any bells.

    • one year ago
  11. geerky42 Group Title
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    So I have to use calculus to solve this problem?

    • one year ago
  12. finkimlost Group Title
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    actually nah just cal u have to use thsi to get integral

    • one year ago
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